Multiphysics

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Multiphysics treats simulations that involve multiple physical models. For example, combining chemical kinetics and fluid mechanics or combining finite elements with molecular dynamics. Multiphysics typically involves solving coupled systems of partial differential equations.

ANSYS Multiphysics,CFD-ACE+, CFD-FASTRAN, COMSOL Multiphysics are some examples of commercially available software packages for simulating multiphysics models.

Almost any physical simulation involves coupled systems, like E and B field for electromagnetism or pressure and velocity for sound or the real and the imaginary part of the quantum mechanical wave function. Or consider the mean field approximation for the electronic structure of atoms, where the electric field and the electron wave functions are coupled.

[edit] References

  • Susan L. Graham, Marc Snir, and Cynthia A. Patterson (Editors), Getting Up to Speed: The Future of Supercomputing, Appendix D. The National Academies Press, Washington DC, 2004. ISBN 0-309-09502-6.
  • Paul Lethbridge, Multiphysics Analysis, p26, The Industrial Physicist, Dec 2004/Jan 2005, [1]
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